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Method of encoding moving picture in inter prediction mode

a technology of inter-prediction mode and encoding method, which is applied in the direction of color television with bandwidth reduction, signal generator with optical-mechanical scanning, television system, etc., can solve the problem of degrading the coding efficiency of motion vector, and achieve the effect of effective prediction

Active Publication Date: 2013-01-24
M&K HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent describes a way to decode video in a way that reduces the amount of data needed. The method involves predicting the movement of the video, based on nearby video frames, and then encoding the predictive data and the original video data. This results in a more efficient video file.

Problems solved by technology

But, if a motion of the current block is different motions of the neighboring blocks, the coding efficiency of the motion vector degrades.

Method used

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  • Method of encoding moving picture in inter prediction mode
  • Method of encoding moving picture in inter prediction mode
  • Method of encoding moving picture in inter prediction mode

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Embodiment Construction

[0018]Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the exemplary embodiments disclosed below, but can be implemented in various types. Therefore, many other modifications and variations of the present invention are possible, and it is to be understood that within the scope of the disclosed concept, the present invention may be practiced otherwise than as has been specifically described,.

[0019]A picture is divided into a plurality of slices, and each slice is divided into a plurality of largest coding units (LCUs). The position of each LCU is designated by an address indicator. The LCU may be a coding unit or may be divided into a plurality of coding units. The LCU contains information indicating structure of coding units in the LCU. One more split flags are used to indicate the structure of coding units in the LCU.

[0020]Each coding units consists of ...

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Abstract

Provided is a method that determines a reference picture index and a motion vector of a current prediction unit, derives spatial motion vector candidates using valid motion vectors of neighboring prediction units each of which exists at a predetermined position, derives temporal motion vector candidate of the current prediction unit, determines one of the spatial and temporal motions vector candidates as a motion vector predictor, calculates a motion vector difference between the motion vector of the current prediction unit and the motion vector predictor and encodes the motion vector difference and the reference picture index.Therefore, a motion vector is effectively predicted not only when motion of image is ordinary but also when the motion of image is little or steady or the image to be encoded is a background image.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation application of International Application No. PCT / KR2011 / 005942 filed on Aug. 12, 2011, which claims priority to Korean Application No. 10-2010-0079530 filed on Aug. 17, 2010 and Korean Application No. 10-2011-0064306 filed Jun. 30, 2011, which applications are incorporated herein by reference.TECHNICAL FIELD[0002]The present invention relates to a method of encoding a moving picture in inter prediction mode, and more particularly, to a method of encoding a motion vector of a current prediction unit using one of motion vectors of spatially and temporally neighboring prediction unit.BACKGROUND ART[0003]In image compression methods such as Motion Picture Experts Group (MPEG)-1, MPEG-2, MPEG-4 and H.264 / MPEG-4 Advanced Video Coding (AVC), one picture is divided into macroblocks to encode an image. Then, the respective macroblocks are encoded using inter prediction or intra prediction.[0004]In inter predictio...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04N7/32
CPCH04N19/56H04N19/52H04N19/107H04N19/61H04N19/11H04N19/51H04N19/124H04N19/159H04N19/503H04N19/513H04N19/55H04N19/573H04N19/577H04N19/70H04N19/105H04N19/139H04N19/176H04N19/13H04N19/126H04N19/129H04N19/91
Inventor OH, SOO MI
Owner M&K HLDG
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